A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Henry's Law coefficients of chloropicrin and methyl isothiocyanate
AbstractHenry's Law coefficients were measured for the first time for chloropicrin and methyl isothiocyanate (MITC) at 25°C in deionized water, in 0.10M NaCl, in 0.20M NaCl, and in pH 4.0 and 8.0 buffered solutions. For chloropicrin, the Henry's Law coefficient was 2.1±0.3atmM−1, and did not show significant pH dependence or dependence on ionic strength. For MITC, the coefficient was much smaller, 0.06±0.05atmM−1. The Henry's Law coefficient for MITC did show dependence on ionic strength, increasing to 0.14±0.05atmM−1 at 0.20M, but did not appear to depend on pH. MITC has a much stronger tendency to remain in solution than chloropicrin. The transport of chloropicrin from solution to the atmosphere is likely to be significant environmentally, while MITC shows a much lower rate of volatilization. When transferred to the atmosphere, oxidation and photochemical reactions are likely to dominate the transformation of both chloropicrin and MITC, rather than heterogenous reactions.
Henry's Law coefficients of chloropicrin and methyl isothiocyanate
AbstractHenry's Law coefficients were measured for the first time for chloropicrin and methyl isothiocyanate (MITC) at 25°C in deionized water, in 0.10M NaCl, in 0.20M NaCl, and in pH 4.0 and 8.0 buffered solutions. For chloropicrin, the Henry's Law coefficient was 2.1±0.3atmM−1, and did not show significant pH dependence or dependence on ionic strength. For MITC, the coefficient was much smaller, 0.06±0.05atmM−1. The Henry's Law coefficient for MITC did show dependence on ionic strength, increasing to 0.14±0.05atmM−1 at 0.20M, but did not appear to depend on pH. MITC has a much stronger tendency to remain in solution than chloropicrin. The transport of chloropicrin from solution to the atmosphere is likely to be significant environmentally, while MITC shows a much lower rate of volatilization. When transferred to the atmosphere, oxidation and photochemical reactions are likely to dominate the transformation of both chloropicrin and MITC, rather than heterogenous reactions.
Henry's Law coefficients of chloropicrin and methyl isothiocyanate
Worthington, Erica K. (author) / Wade, Elisabeth A. (author)
Atmospheric Environment ; 41 ; 5510-5515
2007-02-15
6 pages
Article (Journal)
Electronic Resource
English
Photolysis of chloropicrin by simulated sunlight
| Elsevier | 2015
Synthesis of 2-Methyl-4-quinolyl Isothiocyanate
| British Library Online Contents | 2004
| British Library Conference Proceedings | 1996
Haz Mat: On the Line: "Methyl Isothiocyanate Suspected Leak"
British Library Online Contents | 1999